Linux Kernel  3.7.1
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
hwsampler.h
Go to the documentation of this file.
1 /*
2  * CPUMF HW sampler functions and internal structures
3  *
4  * Copyright IBM Corp. 2010
5  * Author(s): Heinz Graalfs <[email protected]>
6  */
7 
8 #ifndef HWSAMPLER_H_
9 #define HWSAMPLER_H_
10 
11 #include <linux/workqueue.h>
12 
13 struct hws_qsi_info_block /* QUERY SAMPLING information block */
14 { /* Bit(s) */
15  unsigned int b0_13:14; /* 0-13: zeros */
16  unsigned int as:1; /* 14: sampling authorisation control*/
17  unsigned int b15_21:7; /* 15-21: zeros */
18  unsigned int es:1; /* 22: sampling enable control */
19  unsigned int b23_29:7; /* 23-29: zeros */
20  unsigned int cs:1; /* 30: sampling activation control */
21  unsigned int:1; /* 31: reserved */
22  unsigned int bsdes:16; /* 4-5: size of sampling entry */
23  unsigned int:16; /* 6-7: reserved */
24  unsigned long min_sampl_rate; /* 8-15: minimum sampling interval */
25  unsigned long max_sampl_rate; /* 16-23: maximum sampling interval*/
26  unsigned long tear; /* 24-31: TEAR contents */
27  unsigned long dear; /* 32-39: DEAR contents */
28  unsigned int rsvrd0; /* 40-43: reserved */
29  unsigned int cpu_speed; /* 44-47: CPU speed */
30  unsigned long long rsvrd1; /* 48-55: reserved */
31  unsigned long long rsvrd2; /* 56-63: reserved */
32 };
33 
34 struct hws_ssctl_request_block /* SET SAMPLING CONTROLS req block */
35 { /* bytes 0 - 7 Bit(s) */
36  unsigned int s:1; /* 0: maximum buffer indicator */
37  unsigned int h:1; /* 1: part. level reserved for VM use*/
38  unsigned long b2_53:52; /* 2-53: zeros */
39  unsigned int es:1; /* 54: sampling enable control */
40  unsigned int b55_61:7; /* 55-61: - zeros */
41  unsigned int cs:1; /* 62: sampling activation control */
42  unsigned int b63:1; /* 63: zero */
43  unsigned long interval; /* 8-15: sampling interval */
44  unsigned long tear; /* 16-23: TEAR contents */
45  unsigned long dear; /* 24-31: DEAR contents */
46  /* 32-63: */
47  unsigned long rsvrd1; /* reserved */
48  unsigned long rsvrd2; /* reserved */
49  unsigned long rsvrd3; /* reserved */
50  unsigned long rsvrd4; /* reserved */
51 };
52 
53 struct hws_cpu_buffer {
54  unsigned long first_sdbt; /* @ of 1st SDB-Table for this CP*/
55  unsigned long worker_entry;
56  unsigned long sample_overflow; /* taken from SDB ... */
57  struct hws_qsi_info_block qsi;
58  struct hws_ssctl_request_block ssctl;
59  struct work_struct worker;
60  atomic_t ext_params;
61  unsigned long req_alert;
62  unsigned long loss_of_sample_data;
63  unsigned long invalid_entry_address;
64  unsigned long incorrect_sdbt_entry;
65  unsigned long sample_auth_change_alert;
66  unsigned int finish:1;
67  unsigned int oom:1;
68  unsigned int stop_mode:1;
69 };
70 
71 struct hws_data_entry {
72  unsigned int def:16; /* 0-15 Data Entry Format */
73  unsigned int R:4; /* 16-19 reserved */
74  unsigned int U:4; /* 20-23 Number of unique instruct. */
75  unsigned int z:2; /* zeros */
76  unsigned int T:1; /* 26 PSW DAT mode */
77  unsigned int W:1; /* 27 PSW wait state */
78  unsigned int P:1; /* 28 PSW Problem state */
79  unsigned int AS:2; /* 29-30 PSW address-space control */
80  unsigned int I:1; /* 31 entry valid or invalid */
81  unsigned int:16;
82  unsigned int prim_asn:16; /* primary ASN */
83  unsigned long long ia; /* Instruction Address */
84  unsigned long long lpp; /* Logical-Partition Program Param. */
85  unsigned long long vpp; /* Virtual-Machine Program Param. */
86 };
87 
88 struct hws_trailer_entry {
89  unsigned int f:1; /* 0 - Block Full Indicator */
90  unsigned int a:1; /* 1 - Alert request control */
91  unsigned long:62; /* 2 - 63: Reserved */
92  unsigned long overflow; /* 64 - sample Overflow count */
93  unsigned long timestamp; /* 16 - time-stamp */
94  unsigned long timestamp1; /* */
95  unsigned long reserved1; /* 32 -Reserved */
96  unsigned long reserved2; /* */
97  unsigned long progusage1; /* 48 - reserved for programming use */
98  unsigned long progusage2; /* */
99 };
100 
101 int hwsampler_setup(void);
102 int hwsampler_shutdown(void);
103 int hwsampler_allocate(unsigned long sdbt, unsigned long sdb);
104 int hwsampler_deallocate(void);
105 unsigned long hwsampler_query_min_interval(void);
106 unsigned long hwsampler_query_max_interval(void);
107 int hwsampler_start_all(unsigned long interval);
108 int hwsampler_stop_all(void);
109 int hwsampler_deactivate(unsigned int cpu);
110 int hwsampler_activate(unsigned int cpu);
111 unsigned long hwsampler_get_sample_overflow_count(unsigned int cpu);
112 
113 #endif /*HWSAMPLER_H_*/
Generated on Thu Jan 10 2013 13:17:03 for Linux Kernel by   doxygen 1.8.2